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The Emacs commands for manipulating sentences and paragraphs are mostly on Meta keys, so as to be like the word-handling commands.
backward-sentence
).
forward-sentence
).
kill-sentence
).
backward-kill-sentence
).
The commands M-a and M-e (backward-sentence
and
forward-sentence
) move to the beginning and end of the current
sentence, respectively. They were chosen to resemble C-a and
C-e, which move to the beginning and end of a line. Unlike them,
M-a and M-e if repeated or given numeric arguments move over
successive sentences.
Moving backward over a sentence places point just before the first character of the sentence; moving forward places point right after the punctuation that ends the sentence. Neither one moves over the whitespace at the sentence boundary.
Just as C-a and C-e have a kill command, C-k, to go
with them, so M-a and M-e have a corresponding kill command
M-k (kill-sentence
) which kills from point to the end of
the sentence. With minus one as an argument it kills back to the
beginning of the sentence. Larger arguments serve as a repeat count.
There is also a command, C-x DEL
(backward-kill-sentence
), for killing back to the beginning of a
sentence. This command is useful when you change your mind in the
middle of composing text.
The sentence commands assume that you follow the American typist's convention of putting two spaces at the end of a sentence; they consider a sentence to end wherever there is a `.', `?' or `!' followed by the end of a line or two spaces, with any number of `)', `]', `'', or `"' characters allowed in between. A sentence also begins or ends wherever a paragraph begins or ends.
The variable sentence-end
controls recognition of the end of a
sentence. It is a regexp that matches the last few characters of a
sentence, together with the whitespace following the sentence. Its
normal value is
"[.?!][]\"')]*\\($\\| $\\|\t\\| \\)[ \t\n]*" |
This example is explained in the section on regexps. See section K.5 Syntax of Regular Expressions.
If you want to use just one space between sentences, you should
set sentence-end
to this value:
"[.?!][]\"')]*\\($\\|\t\\| \\)[ \t\n]*" |
You should also set the variable sentence-end-double-space
to
nil
so that the fill commands expect and leave just one space at
the end of a sentence. Note that this makes it impossible to
distinguish between periods that end sentences and those that indicate
abbreviations.
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